A Patient Is Concerned About the Arterial Line Waveform Pattern

A patient is concerned about the arterial line waveform pattern because there is a break in the downward slope of the pattern and "something must be wrong" because it is not a smooth line. What is the nurse's best response?

A) "What you are seeing is called a dicrotic notch, and it means the beginning of the resting phase of your heart."
B) "It is nothing for you to be concerned about. It is just a measurement of your blood pressure."
C) "You are right. I will see if you are prescribed any medication for that problem."
D) "You are seeing the strongest part of your heart muscle, which is the first number of a blood pressure reading."